Madness and mayhem hit the streets as Arkham Asylum and Blackgate Prison both unleash their prisoners on the citizens of Gotham City. And with no Dark Knight to protect the city, what horrors will follow? Arkham and Blackgate face off in this 6-issue miniseries featuring Scarecrow, The Penguin, Bane, Killer Croc, and more. Also includes BATMAN #23.4: BANE and FOREVER EVIL AFTERMATH: BATMAN VS. BANE #1.